org.apache.xalan.transformer
Class NumeratorFormatter

java.lang.Object
  org.apache.xalan.transformer.NumeratorFormatter

 class NumeratorFormatter
extends java.lang.Object

Converts enumerated numbers into strings, using the XSL conversion attributes. Having this in a class helps avoid being forced to extract the attributes repeatedly.

Nested Class Summary

(package private) static class

NumeratorFormatter.NumberFormatStringTokenizer This class returns tokens using non-alphanumberic characters as delimiters.

Field Summary

private static char[]	m_alphaCountTable Chars for converting integers into alpha counts.
(package private) java.text.NumberFormat	m_formatter An instance of a NumberFormat
(package private) NumeratorFormatter.NumberFormatStringTokenizer	m_formatTokenizer An instance of a Tokenizer
(package private) java.util.Locale	m_locale Locale we need to format in
(package private) TransformerImpl	m_processor An instance of a transformer
private static DecimalToRoman[]	m_romanConvertTable Table to help in converting decimals to roman numerals.
protected org.w3c.dom.Element	m_xslNumberElement The owning xsl:number element.

Constructor Summary

NumeratorFormatter(org.w3c.dom.Element xslNumberElement, TransformerImpl processor)
Construct a NumeratorFormatter using an element that contains XSL number conversion attributes - format, letter-value, xml:lang, digit-group-sep, n-digits-per-group, and sequence-src.

Method Summary

protected java.lang.String	int2alphaCount(int val, char[] table) Convert a long integer into alphabetic counting, in other words count using the sequence A B C ...
(package private) java.lang.String	long2roman(long val, boolean prefixesAreOK) Convert a long integer into roman numerals.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

m_xslNumberElement

protected org.w3c.dom.Element m_xslNumberElement

The owning xsl:number element.

m_formatTokenizer

NumeratorFormatter.NumberFormatStringTokenizer m_formatTokenizer

An instance of a Tokenizer

m_locale

java.util.Locale m_locale

Locale we need to format in

m_formatter

java.text.NumberFormat m_formatter

An instance of a NumberFormat

m_processor

TransformerImpl m_processor

An instance of a transformer

m_romanConvertTable

private static final DecimalToRoman[] m_romanConvertTable

Table to help in converting decimals to roman numerals.

See Also:

DecimalToRoman

m_alphaCountTable

private static final char[] m_alphaCountTable

Chars for converting integers into alpha counts.

See Also:

TransformerImpl#int2alphaCount

Constructor Detail

NumeratorFormatter

NumeratorFormatter(org.w3c.dom.Element xslNumberElement,
                   TransformerImpl processor)

Construct a NumeratorFormatter using an element that contains XSL number conversion attributes - format, letter-value, xml:lang, digit-group-sep, n-digits-per-group, and sequence-src.

Parameters:

xslNumberElement - The given xsl:number element

processor - a non-null transformer instance

Method Detail

int2alphaCount

protected java.lang.String int2alphaCount(int val,
                                          char[] table)

Convert a long integer into alphabetic counting, in other words count using the sequence A B C ... Z AA AB AC.... etc.

Parameters:

val - Value to convert -- must be greater than zero.

table - a table containing one character for each digit in the radix

Returns:

String representing alpha count of number.

See Also:

Note that the radix of the conversion is inferred from the size of the table.

long2roman

java.lang.String long2roman(long val,
                            boolean prefixesAreOK)

Convert a long integer into roman numerals.

Parameters:

val - Value to convert.

prefixesAreOK - true_ to enable prefix notation (e.g. 4 = "IV"), false_ to disable prefix notation (e.g. 4 = "IIII").

Returns:

Roman numeral string.

See Also:

DecimalToRoman, m_romanConvertTable